What is CVE-2025-13881?

CVE-2025-13881 is a low-severity vulnerability in Red Hat Build Of Keycloak 26.4, classified under Incorrect Privilege Assignment. CVSS score: 2.7/10. Published 2026-02-02.

How severe is CVE-2025-13881?

Low severity. CVSS v3 base score is 2.7 out of 10.

Privilege escalation in Red Hat Build Of Keycloak 26.4

CVE-2025-13881

A flaw was found in Keycloak Admin API. This vulnerability allows an administrator with limited privileges to retrieve sensitive custom attributes via the /unmanagedAttributes endpoint, bypassing User Profile visibility settings.

EPSS: 0.004 (29.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 2.7 (Low). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N.

Affected products

Red Hat Build Of Keycloak 26.4 — versions 26.4.9-1, 26.4-11, 26.4-10
Red Hat Build Of Keycloak 26.4.9

Weakness classification (CWE)

CWE-266 — Incorrect Privilege Assignment

References

secalert@redhat.com (x_refsource_REDHAT, vendor-advisory)
secalert@redhat.com (x_refsource_REDHAT, vendor-advisory)
secalert@redhat.com (x_refsource_REDHAT, vdb-entry)
secalert@redhat.com (x_refsource_REDHAT, issue-tracking)

Frequently asked questions

What is CVE-2025-13881?: CVE-2025-13881 is a low-severity vulnerability in Red Hat Build Of Keycloak 26.4, classified under Incorrect Privilege Assignment. CVSS score: 2.7/10. Published 2026-02-02.
How severe is CVE-2025-13881?: Low severity. CVSS v3 base score is 2.7 out of 10.